1978 PONTIAC FIREBIRD Transmission & Drivetrain

Differential Cover, Rear, 10-bolt, Aluminum, Black Anodized, GM 8.2/8.5/8.6 in., Each

Part Number: BMM-71502

4.52 out of 5 stars ( 21 )

Estimated Ship Date: Monday 10/13/2025

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Clutch Kit, Organic, 1 1/8 in.- 10-Spline, 11 in. Disc, Oldsmobile, Pontiac, Kit

Part Number: ZZZ-30006

3.67 out of 5 stars ( 6 )

Estimated Ship Date: Monday 10/13/2025

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Ring and Pinion and Differential Combo, GM 8.5 in., 3.42:1 Ratio, 28-Spline, Buick, Chevy, Oldsmobile, Pontiac, Kit

Part Number: YGA-12627

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

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Clutch Disc, Organic, 1 1/8 in. Diameter Shaft, 26-Spline, 11 in. Disc, Buick, Chevy, GMC, Pontiac, V8, Each

Part Number: CTF-384148

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Monday 10/13/2025

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Differential Cover, 10-bolt, Aluminum, Natural, GM 8.2 in., GM 8.5 in., GM 8.6 in., Each

Part Number: BMM-70502

4.76 out of 5 stars ( 33 )

Estimated Ship Date: Monday 10/13/2025

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Manual Transmission Bellhousing, 621, New, Aluminum, Natural, Blue Bird, Buick, Cadillac, Checker, Chevy, GMC, Jeep, Olds, Pontiac, Workhorse, Each

Part Number: IST-BHG-00104A

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

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Clutch Disc, Organic, 1 1/8 in. Diameter Shaft, 10-Spline, 10.4 in. Disc, Jeep, L6, V8, Each

Part Number: CTF-384193

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 10/13/2025

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Bolts, Pressure Plate, Steel, Black Oxide, 3/8-16 in. Chevy, Mopar, 1955-1985, V8, Set of 6

Part Number: MCL-1500

4.25 out of 5 stars ( 16 )

Estimated Ship Date: Monday 10/13/2025

Gear, Ring and Pinion, 3.73:1 Ratio, GM, 8.5/8.6 in., Set

Part Number: MGR-G885373

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/13/2025

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Pressure Plate, Centerforce I, Diaphragm, 11 in. Disc Diameter, Buick, Chevy, Dodge, Ford, GMC, Oldsmobile, Pontiac, Each

Part Number: CTF-CF165552

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

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Gear, Ring and Pinion, 3.73:1 Ratio, GM, 7.5 in., Set

Part Number: MGR-GM75-373

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

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RING GEAR

Part Number: PIO-FRG-168S

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/13/2025

Differential Pinion Yoke, Mechanics 3R, 30 Spline, Steel, GM, 8.5 in., 8.6 in., Each

Part Number: YGA-41071

4.6 out of 5 stars ( 5 )

Estimated Ship Date: Monday 10/13/2025

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Combo, Hurst, Shifter, Competition Plus, Installation Kit, Chevy, Pontiac, T10, Kit

Part Number: CMB-13-0078

Not Yet Reviewed

Estimated Ship Date: Monday 10/13/2025

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Gear, Ring and Pinion, EXCel, 4.10:1 Ratio, GM, 7.5/7.625 in., 10-Bolt, Set

Part Number: RMG-GM75410OE

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

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Clutch Fork Pivot Ball, Adjustable, Steel, Black Oxide, Chevy/Pontiac/Olds, Most Applications, Each

Part Number: LAK-15501

4.5 out of 5 stars ( 16 )

Estimated Ship Date: Monday 10/13/2025

Ring and Pinion Installation Kit, Master Kit, GM, 8.5 in., 30-Spline Pinion, Kit

Part Number: MGR-R10REMKT

4.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 10/13/2025

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Flexplate, Gold Series, 166-Tooth, External Engine Balance, SFI 29.1, TH350, TH400, 700R4, Pontiac, V8, Each

Part Number: PQX-1845500

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

Automatic Transmission Kickdown Cable, Midnight Series Hi-Tech, Black Braided Stainless Steel, Black Aluminum Fittings, GM, TH350, Kit

Part Number: LOK-XKD-2350HT

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 10/13/2025

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Ring and Pinion Installation Kit, GM, 8.5 in., GM, Kit

Part Number: MGR-R10R

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 10/13/2025

Differential Shims, Carrier Shim Type, Steel, Kit

Part Number: MGR-SS12

4.0 out of 5 stars ( 15 )

Estimated Ship Date: Monday 10/13/2025

Gear, Ring and Pinion, 4.11:1 Ratio, GM, 8.5/8.6 in., 10-Bolt, Set

Part Number: MGR-GM10-411

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 10/13/2025

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Transmission Filter, Buick, Chevy, Oldsmobile, Pontiac, TH350, Kit

Part Number: TCI-328500

3.81 out of 5 stars ( 21 )

Estimated Ship Date: Monday 10/13/2025

Ring and Pinion Installation Kit, EXCel, GM, 8.5 in., 10-Bolt, 30 Spline Pinion, Koyo Bearings, Kit

Part Number: RMG-XL-1021-1

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 10/13/2025

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Bearing, Pinion, 1.312 in. Inside Diameter, Each

Part Number: TMK-M88048

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 10/13/2025